What words that describe a bad teacher?

Here are some words that can be used to describe a bad teacher:

- Incompetent

- Unqualified

- Lazy

- Unprepared

- Disorganized

- Biased

- Unfair

- Inattentive

- Unresponsive

- Unhelpful

- Uninspiring

- Boring

- Unenthusiastic

- Unmotivated

- Unprofessional

- Rude

- Disrespectful

- Mean